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TrustPower Procceds With Esk Hydro

TrustPower Media Statement
7 February 2012

TrustPower Procceds With Esk Hydro

TrustPower has announced that it is about to begin construction of a new hydro electricity generation scheme in Hawkes Bay.

The scheme, to be known as Esk Hydro, will consist of two separate generating stations that draw on separate tributaries of the Esk River. Using special Pelton turbines designed specifically for use on high-head (pressure) the scheme will deliver 3.8 MW, and supply enough power for the equivalent of 1,800 average
New Zealand Homes

The Esk hydro scheme is TrustPower's first generation project in the Hawkes Bay region and will directly support the company's retail business including those customers in Wairoa and Poverty Bay and increasing numbers of clients in the wider Hawkes Bay region.

The project was initiated nearly 10 years ago by the owners of the land on which the scheme will be built. TrustPower acquired the rights to the project more than five years ago and since then worked with a very clever and practical New Zealand based team including electrical engineers, turbine designers, civil engineers, turbine fabricators and the civil construction team to produce an innovative kiwi designed and constructed solution that builds on TrustPower's existing competence in owning and operating small hydro to medium schemes.

The scheme is fully resource consented, and follows the same environmentally sensitive design strategy as Trust{Power's proposed schemes for the Arnold River on the South Island West Coast, and the Wairau River in Marlborough, in not requiring the damming of any waterways, and the use of relatively small and compact intakes and powerhouses.

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The project will also be the first significant scale generation project in the region that does not rely on Transpower's National Grid, and will therefore increase the efficiency of electricity supply to Hawke's Bay.

The transmission solution was a key milestone for the project, requiring collaboration across many divisions of the Unison Group, both with TrustPower and with TrustPower's consulting engineers.

TrustPower expects the $13 million scheme, which has an expected annual output of 15GWh, to be commissioned in June 2013.

Contractors engaged for the project are as follows:

Civil Construction - MAP Projects
Generators/turbine plant and equipment - AIE Hydroworks
Transmission - Unison Consulting
GRP penstocks - Maskell
Steel penstocks - Pipes NZ
Civil; Design - SKM


ENDS

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